I’m a PhD student at Information Retrieval Lab (IRLab) at the University of Amsterdam, supervised by prof. dr. Maarten de Rijke, prof. dr. Zhaochun Ren, and dr. Yubao Tang.

I’m interested in information retrieval, especially in generative retrieval, embedding models, and recommender systems.

Please feel free to contact me at s.wu AT uva DOT nl.

EDUCATION

Ph.D. Candidate, University of Amsterdam Informatics Institute IRLab May 2026 — Present

• Supervised by prof. dr. Maarten de Rijke, prof. dr. Zhaochun Ren, and dr. Yubao Tang

M.Sc., Shandong University Information Retrieval Lab Sep 2023 — May 2026

• Supervised by prof. dr. Pengjie Ren and prof. dr. Zhaochun Ren

B.Sc., Shandong University Taishan College Sep 2019 — Jun 2023

• GPA: 92.44/100 (ranking 2/17)

RESEARCH EXPERIENCE

Internship Tencent WeChat Feb 2025 — March 2026

• Supervised by Dr. Hongyu Lu.

Undergraduate Research Assistant Information Retrieval Lab Sep 2021 — Jun 2023

• Supervised by prof. dr. Xin Xin and prof. dr. Zhaochun Ren

PUBLICATIONS

[2025]

Shiguang Wu, Zhaochun Ren, Xin Xin, Jiyuan Yang, Mengqi Zhang, Zhumin Chen, Maarten de Rijke, and Pengjie Ren, Constrained auto-regressive decoding constrains generative retrieval. Proceedings of the 48th international ACM SIGIR conference on research and development in information retrieval 2429–2440.

[2025]

Wenhao Zhang, Mengqi Zhang, Shiguang Wu, Jiahuan Pei, Zhaochun Ren, Maarten de Rijke, Zhumin Chen, and Pengjie Ren, ExcluIR: Exclusionary neural information retrieval. Proceedings of the AAAI Conference on Artificial Intelligence. 39, 13295–13303.

[2024]

Shiguang Wu, Xin Xin, Pengjie Ren, Zhumin Chen, Jun Ma, Maarten de Rijke, and Zhaochun Ren, Learning robust sequential recommenders through confident soft labels. ACM Trans. Inf. Syst. 43.

[2024]

Pengjie Ren, Chengshun Shi, Shiguang Wu, Mengqi Zhang, Zhaochun Ren, Maarten de Rijke, Zhumin Chen, and Jiahuan Pei, Mini-ensemble low-rank adapters for parameter-efficient fine-tuning. Proceedings of the 62nd annual meeting of the association for computational linguistics (volume 1: Long papers).

[2024]

Shiguang Wu, Wenda Wei, Mengqi Zhang, Zhumin Chen, Jun Ma, Zhaochun Ren, Maarten de Rijke, and Pengjie Ren, Generative retrieval as multi-vector dense retrieval. Proceedings of the 47th international ACM SIGIR conference on research and development in information retrieval. Best Paper Honorable Mention Award.

ACADEMIC SERVICES

Reviewer: Information Processing & Management (IP&M)

PC Member: AAAI’26, SIGIR’24, SIGIR-AP’25, WSDM’26, WWW’26

AWARDS AND ACHIEVEMENTS

• National Outstanding Student Scholarship. China. 2022, 2024, 2025.

• Best Paper Honorable Mention. SIGIR. 2024.

• Outstanding Undergraduate Thesis Award. Shandong University. 2023.

• Outstanding Student Scholarship. Shandong University. 2020 — 2022.

• The 18th Certified Sofware Professional Examination. Top 2.65%. 2020.